Answers to frequently asked questions - Provided by Paragon CRT, makers of the first lenses to obtain FDA approval for overnight Corneal Reshaping.
- What is corneal reshaping?
Corneal reshaping is a non-surgical process that reshapes the cornea of your eye while you sleep. You simply remove the lenses when you wake up and go the whole day without any other vision correction. - How long does it take to start working?
Most patients see dramatic improvement in vision after only one night of wear, with complete vision correction in one to two weeks. - How do I see between the time I start using Paragon CRT and when it totally corrects my vision?
During the transitional period, you may wear Paragon CRT for part of the day. You may also wear other temporary contact lenses. You can see with the lenses on or off. So if you have to get up at night, no problem. - What if I have astigmatism?
Traditionally, corneal reshaping treats nearsightedness (myopia). With the help of corneal mapping and computer assisted design of custom contact lenses, however, our office can successfully treat patients with astigmatism as well. - How often should I replace my Corneal Reshaping lenses?
Once a year. - Is corneal reshaping permanent?
No. If you stop wearing the lenses, your vision will return to how it was. - Are there any risks with Corneal Reshaping?
There is a small risk involved when any contact lens is worn. However, during the Paragon CRT FDA clinical study, there were no serious adverse events observed. - How do I get started?
Call our office to schedule a no-risk consultation. At this complimentary visit, your prescription and eye surface will be analyzed. A corneal map will also be taken to determine whether you are a good candidate for Corneal Reshaping.

